JEFFERSON CITY, Mo. – The following is a list of general highway maintenance and construction work planned in the mid–Missouri area May 18 - 24, 2026. Weather conditions may postpone scheduled work. Many projects will include lane closures which could cause delays.
All Counties
In addition to the work listed below, other moving operations such as pothole patching, brush cutting, striping, and pavement repairs continue in various locations. Motorists should travel with care and be alert for slow-moving equipment.
All work is weather permitting, and schedules are subject to change.
Boone County
Westbound I-70 on-ramp (Exit 127) and westbound I-70 off-ramp (Exit 126) – The ramp from Missouri Route 763 (Rangeline Street) to westbound I-70 (Exit 127) and the ramp from westbound I-70 to Missouri Route 163 (Providence Road) (Exit 126) in Columbia will be closed from 8 p.m. May 18, to 2 a.m. May 19. Motorists will need to use and alternate route.**
Route EE – Culvert replacement planned May 19 - 21 from Drake Lane to Route J. One lane will remain open, and crews will flag traffic through the work zone.
Route CC – CLOSED for a culvert replacement west of Sturgeon at Lovers Lane on May 21 from 8 a.m. to 4:30 p.m. Motorists must use an alternate route during the closure.
Route AC – Pedestrian facility upgrades continue. Work will require temporary closures of pedestrian facilities, turning restrictions, and intermittent single-lane closures with flaggers to direct motorists through the work zone. The project is scheduled for completion in July 2026.
Missouri Route 124 – Culvert replacements planned in various locations. One lane will remain open, and crews will flag traffic through the work zone. The project is scheduled for completion in July 2026.
Conley Road – CLOSED at the intersection of Business Loop 70 for roundabout construction. A signed detour directs motorists around the closure. The new intersection is expected to open by the end of May 2026.**
I-70 – Intermittent single-lane nighttime closures continue through June for shoulder work between mile marker 115 (Route BB) and 121 (Midway) from 7 p.m. to 6 a.m.**
St. Charles Road – CLOSED over I-70 for bridge construction. The on- and off-ramps at this overpass (Exit 131) are open, and a signed detour is in place. The new bridge is expected to open in September 2026.**
U.S. Route 63 – Interchange improvements at Route AC (Grindstone Parkway) continue. This project is scheduled to continue through November 2026. More information: www.modot.org/projects/63ACInterchange.
- The northbound on- and off-ramps at the interchange are closed through June.
- New Haven Road CLOSED through June from the southbound U.S. Route 63 on- and off-ramps to Lenoir Street.
- Lemone Industrial Boulevard CLOSED through June where it joins New Haven Road.
I-70 Drive Southeast – CLOSED from just west of Woodridge Drive to Glenstone Drive for construction of a new underpass. The entrance to Woodridge Drive from I-70 Drive Southeast is also closed. A signed detour directs motorists around the closure. The roadway is expected to reopen in January 2027.**
North Outer Road 70 – CLOSED at Cedar Creek, west of Callaway County Route J (near mile marker 136.6). Signs are located ahead of the closure to alert motorists to use an alternate route for the duration of the closure, which is expected through January 2027. **
I-70 – New pavement construction from west of St. Charles Road (near mile marker 130) to the Callaway County line (near mile marker 136). Motorists can expect intermittent and long-term lane closures for the duration of the project, which has an overall completion date in 2027. **
Callaway County
Westbound I-70 on-ramp (Exit 148) – The ramp from U.S. Route 54 to westbound I-70 in Kingdom City is closed through mid-July. Motorists are directed to use North Outer Road 70.**
Westbound I-70 off-ramp (Exit 144) – The ramp from westbound I-70 to Route M/Hatton at Exit 144 is closed for several months. Motorists must use an alternate route. **
North Outer Road 70 – CLOSED at Cedar Creek, west of Route J (near mile marker 136.6). Signs are located ahead of the closure to alert motorists to use an alternate route for the duration of the closure, which is expected through January 2027. **
I-70 – New pavement construction continues from Route M (near mile marker 144) to Kingdom City (near mile marker 148). Motorists can expect intermittent and long-term lane closures for the duration of the project, which has an overall completion date in 2027. **
Camden County
Routes KK and MM – Guardrail installation scheduled May 18 - 21. Work will take place nightly from 7 p.m. to 6 a.m. One lane will remain open, and crews will flag traffic through the work zones. This work is in preparation for a resurfacing project tentatively scheduled to begin in mid-June and continue through October 2026.
U.S. Route 54 – Pavement widening and driveway entrance improvements continue in Camdenton. Traffic is shifted between Business Route 5 and Bumper Hill Road, with one lane open in each direction, but no center turn lane. The project is scheduled for completion in November 2027.
Cole County
Missouri Boulevard – A pavement widening, signal installation, and sidewalk extension project is scheduled to begin May 18. One eastbound lane of Missouri Boulevard will be closed during daytime hours, Monday through Friday, between South Ten Mile Drive and east of Wildwood Drive. The project is scheduled for completion in November 2027.
U.S. Route 50 – Bridge maintenance planned May 18 - 21 over the Moreau River. One lane will remain open, and crews will flag traffic through the work zone.
Route C – Bridge maintenance planned May 18 - 21 over the Moreau River. One lane will remain open, and crews will flag traffic through the work zone.
Missouri Route 179 – CLOSED for a bridge deck replacement project over Rock Creek. A signed detour is in place to direct motorist around the closure. The project is scheduled for completion in July 2026.
Bolivar Street – CLOSED over U.S. Route 50 for a bridge rehabilitation project. All traffic must use an alternate route. The bridge is expected to reopen in mid-August.
Cooper County
I-70 – Median work for new pavement construction continues from Missouri Route 5 in Boonville (mile marker 101) to the Missouri River Bridge at Rocheport (mile marker 115). Motorists can expect intermittent and long-term lane closures with a 10-foot width restriction in both directions for the duration of the project. This portion of the Improve I-70 Program has an overall completion date in December 2027. **
Crawford County
Missouri Route 19 – Pothole patching planned May 18 - 21. One lane will remain open, and crews will flag traffic through the work zones.
Dent County
Routes 19 and 32 – Pedestrian facility upgrades continue in the city limits of Salem. Minimal traffic impacts are expected during the project which is expected to be completed in September 2026.
Route B – CLOSED at the bridge over Dry Creek due to deterioration near one of the supporting structures. Motorists may use Routes 19, 32 and 72 as detour routes around the closure. A project to replace the bridge is scheduled to be completed this year.
Howard County
Route Y – Culvert replacement planned May 18 - 21. One lane will remain open, and crews will flag traffic through the work zone.
Route W – CLOSED for a culvert replacement south of Fayette, between Route A and the Moniteau Creek Bridge, on May 20 from 8:30 a.m. to 4 p.m.. Motorists must use an alternate route during the closure.
Routes E and V – Resurfacing and pavement marking continues. One lane of each route will remain open, and crews will flag traffic through the work zones. The project is scheduled for completion in early to mid-June 2026.
Route 124 – Culvert replacements planned in various locations. One lane will remain open, and crews will flag traffic through the work zone. The project is scheduled for completion in July 2026.
Laclede County
Route O – Bridge maintenance planned May 18 - 21 over the Gasconade River. The bridge will be CLOSED from 8 a.m. to 3 p.m. daily. Motorists will need to seek an alternate route during the closure.
Maries County
Route M – Pothole patching planned May 18 - 21. One lane will remain open, and crews will flag traffic through the work zone.
Missouri Route 42 – CLOSED for a bridge deck replacement project at the Fly Creek Bridge. A signed detour is in place to direct motorists around the closure. The project is scheduled for completion in August 2026.
Miller County
Route M – Culvert replacement planned May 18 - 21 at Pin Oak Road. One lane will remain open, and crews will flag traffic through the work zone.
Bagnell Dam Boulevard – CLOSED for survey work between Route W and Valley Road from 8 a.m. to 3 p.m. daily, May 20 - 21. Motorists must seek an alternate route during the closure.
Moniteau County
Missouri Route 87 – Culvert replacement planned May 18 - 21 from Route 179 to Route O. One lane will remain open, and crews will flag traffic through the work zone.
Route CC – CLOSED for a bridge deck replacement project over South Moreau Creek. A signed detour is in place to direct motorists around the closure. The project is scheduled for completion in early July 2026.
Morgan County
Route D – CLOSED for a culvert replacement from 8 a.m. to 3 p.m. May 18, north of Versailles between Route BB and Route Z. Motorists must seek an alternate route during the closure.
Phelps County
Route BB – Culvert replacement planned May 18 - 21 from Forum Drive to County Road 3110. One lane will remain open, and crews will flag traffic through the work zone.
Route O – Culvert replacements planned May 18 - 21 in various locations. One lane will remain open, and crews will flag traffic through the work zones.
U.S. Route 63 – Bridge rehabilitation continues over Little Piney Creek near Yancy Mills. Temporary traffic signals will be used to maintain traffic through the single-lane work zone. A 10-foot width restriction is in place. The project is scheduled for completion in October 2026.
County Road 8490 (Sugar Tree Road) – CLOSED for bridge rehabilitation over I-44. The on- and off-ramps at this overpass (Exit 176) will remain open and a signed detour is in place. The project is scheduled for completion in May 2026.
Route J – CLOSED for bridge rehabilitation over I-44. The on- and off-ramps at this overpass (Exit 169) will remain open and a signed detour will be in place. The project is scheduled for completion in June 2026.
Route 72 – Pedestrian facility upgrades continue in Rolla. Work will require temporary closures of pedestrian facilities and intermittent single-lane closures with flaggers to direct motorists through the work zone. The project is scheduled for completion in June 2026.
Business Loop 44/Route 72/Kingshighway – Bridge rehabilitation project over I-44 continues, one eastbound lane will remain open with a 12-foot width restriction. The bridge is CLOSED to all westbound traffic, and a signed detour is in place. The project is scheduled for completion in July 2026.
Pulaski County
Route M – Pothole patching planned May 18 - 20 from Missouri Route 17 to Route BB. One lane will remain open, and crews will flag traffic through the work zone.
Business Loop 44 – Pedestrian facility upgrades continue from Ridgeview Drive to 0.2 miles east of Plattner Avenue in St. Robert. Work will require temporary closures of pedestrian facilities and intermittent single-lane closures with flaggers to direct motorists through the work zone. The project is scheduled for completion in May 2026.
Missouri Route 133 – Resurfacing scheduled to begin May 18 from Route 17 to I-44. One lane will remain open, and crews will flag traffic through the work zone. The project is scheduled for completion in October 2026.
Spur 44 (Missouri Avenue) – Pedestrian facility upgrades continue from east of St. Robert Boulevard to Gateway Circle in St. Robert. Work will require temporary closures of pedestrian facilities and intermittent single-lane closures with flaggers to direct motorists through the work
Outer Road 44 (Spruce Road) – Guardrail installation continues from Route 17 to Route H. One lane will remain open, and crews will flag traffic through the work zone. Guardrail installation will continue through May 2026 in preparation for a resurfacing project scheduled for later this year.
Business Loop 44 westbound on-ramp – The ramp from Business Loop 44 to westbound I-44 is CLOSED at Exit 159 in St. Robert. Motorists must use an alternate route. The ramp is expected to reopen at the end of June.
I-44 – A pavement widening project from just east of Exit 156 in Waynesville to Exit 159 in St. Robert is underway. Motorists can expect intermittent nighttime lane closures in both directions and intermittent daytime rolling roadblocks and ramp closures from Exit 169 to Exit 150. The project has an overall completion date in 2027.
Washington County
Missouri Route 21 – Pothole patching planned May 18 - 21 from the city limits of Potosi to Route C. One lane will remain open, and crews will flag traffic through the work zone.
Route T – Culvert rehabilitation continues at Big Indian Creek near Potosi. Minimal traffic impacts are expected during the project which is scheduled for completion in July 2026.
Missouri Route 8 – Bridge rehabilitation continues over the Union Pacific Railroad. The roadway will remain open throughout the project but is narrowed to one lane with traffic signals. Motorists should expect delays.
**This work is part of the Improve I-70 program. Learn more at modot.org/improvei70.
MoDOT asks all motorists to work with us by buckling up, putting your phone down, obeying all traffic signs, and slowing down and moving over in work zones.
For more information about MoDOT projects, traffic updates, or other transportation-related matters, please visit our Traveler Information Map at http://traveler.modot.org/ or call our 24-hour Customer Service Center at 1-888-ASK-MoDOT (275-6636). While at modot.org, sign up for work zone updates sent directly to your inbox. Information is also available 24/7 by connecting with us on social media:
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